Single truck.



B. R. VAN KIRK.

SINGLE TRUCK.'

APPLICATION FILED nEc.26. 1914.

B.4 R. VAN KIRK.

SINGLE TRUCK.

APPLICATION FILED DEC-26. 1914.

Patented. July 27, 1915.

BENJAMIN It. VAN KIRK, OF'PHILADELPHIA, PENNSYLVANIA., ASSIGNOR TG THEl.'ALLIIVVIJST LOCQIVIOTIVE WORKS, 0F PHILADELPHIA, PENNSYLVANIA.,CORPORA- 'IIUN OF PENNSYLVANIA.

SING-LE TRUCK.

Specification of Letters Patent.

Itateiited July 27, 1915.

T0 all whom it may concern:

Be it known that I, BENJAMIN R. Viiiv KIRK, a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, have invented certainImprovements in Single Trucks, of which the following is aspecification.

One object of my invention is to provide a single truck in which the topplate is rigidly secured to the car body with a long spring base whichwill prevent galloping or longitudinal rocking.

A further object of the invention is to design the truck so thatcomparatively lightV longitudinal beams are used which are mounteddirectly on the boxes.

A still further object of the invention is to distribute the springs sothat they will support the bar at intervals,

Another object of the invention is to provide means for hanging thebrake beam directly from the longitudinal beams.

In the accompanying drawings, Figure 1 is a side view of a single truck,illustrating my invention; Fig. 2 is a plan view of onehalf of thetruck; and Fig. 3 is an enlarged sectional view on the line a-a, Fig. 2.

The truck to which my invention relates is what is known as a singletruck to which the car body is directly secured and which is notswiveled and the wheel base is such that it will readily pass aroundcurves without swiveling.

Referring to the drawings, 1 is a plate which is rigidly secured to thecar body and extends a considerable distance beyond the wheels, as shownin Fig. 1 the car being shown by dotted lines in said ligure.

2, 2 are the pedestals which are bent to form upper and lower f ianges 3and 4. The upper flanges are rigidly secured to. the plate l by rivets,bolts, or other astenings. rIie rods 5 are secured to the lower anges ofthe two inner' pedestals so as to connect them rigidly together.

6, 6 are diagonal braces connecting the lower flanges of the outerpedestals to the plate 1, as clearly shown in Fig. 3, and tie plates 7extend trom one pedestal to another of each set, the whole being securedby bolts or rivets, as desired.

8 are liners and 9 are the boxes which are mounted between thepedestals.

10, 10 are the axles. I

11, 11 are longitudinal beams, there being a beam on each side of thepedestals on each side of the truck. These beams rest directly upontheboxes as clearly shown in Fig. 3. The two beams are connected togetherby bolts 12 near the pedestals and by the bolts 13 at each end oi thebeam. Suspended v from thelbolts 12 `are the spring carriers 14:

in which is formed the lower spring seat 15, the upper spring sea-tbeing formed by a block`16 secured to the upper flange of the pedestaland to the plate. Coiled springs 17 are located between the two springseats, as shown, and aid in carrying the plate and the lcar body. Asemi-elliptical spring 18 is hung from the bolt 13 at each end of thepair of beams. rlhe inner end of this spring rests upon the bearingplate 19 secured to the ange oi the brace 6 and the plate, while theouter end rests against a bearing plate 20 on the outer end of the plate1.

21 is the motor suspension bar mounted on a rod 22 hung from the beams11 and short coiled springs 23 and 24; are located above and below thesuspension bar, as clearly illustrated in Fig. 3.

25, 25 are the brake beams having a head 26 provided with shoes 27 andthe beams are suspended by links 28 from the longitudinal beam 11.Pivot; pins 29 extend from one beam to the other of each pair and thelinks are pivoted to these pins.

30, 30 are cross rods extending from one side tie rod to the other andnot only act as braces, but may support any mechanism which is carriedby the truck.

I claim:

1. 'Ilie combination in a single truck, of a longitudinal plate at eachside of the truck to which the body of the car is rigidly secured;pedestals depending from the plate; means for bracing the lower portionsof the pedestals; boxes mounted between each pair of pedestals; axles inthe boxes; two longitudinal beams on each side of the truck, one beambeing on the outer side of the pedestals and the other on the inner?side thereof spring carriers suspended from the beams; springs mountedbetween the spring carriers and the plate; springs hung from the outerends of the beams and supporting the outer end of the plate.

2. The combination in a single truck, of two longitudinal plates, onemounted on each side of the truck and to which the body of the car issecured; pedestals rigidly secured to the plates; braces at the Vlowerends of the pedestals connected to the plates; two pairs of longitudinalbeams arranged on edge at each side of the truck, one beam of each pairbeing on the outer side of the pedestals and the other on the inner sidethereof7 said beams extending beyond the pedestals;

Spring carriers located between the beams close to each side of eachpair of pedestals; coiled springs mounted between the carriers and theplate; and semi-elliptic springs located between the beams at the outerends and hung therefrom and bearing upon the outer ends of the plate.

3. The combination in a single truck, of two longitudinal platesarranged to be secured to the body of a car; a series of pedestalshaving upper and lower flanges, the upper flanges being secured to theunder side of the plate; braces and tie rods secured to the lowerflanges of the pedestals; boxes located between the pedestals of eachset;

aXles in the boxes; two pairs of longitudinal beams at each side of thetruck, one beam of each pair being on the outer side of the pedestalsand the other beam being on the inner side thereof; spring carrierslocated between the beams on each side of each set of pedestals; coiledsprings mounted between the spring carriers and the upper flanges of thepedestals; a semieelliptieal spring located at each end of each pair ofbeams and suspended from said beams, the outer free end of each springresting on the under side 0f the outer end of each plate and the innerend of each spring bearing upon the plate at a point near the pedestals.

Inv testimony whereof, I have signed my naine to this specification, inthe presence of two subscribing witnesses.

BENJAMIN R. VAN KIRK.

I/Vitnesses:

Jos. H. KLEIN, WM. A. BARR.

G'opies of this patent may be obtained for iive cents each, byaddressing the Commissioner of Patents. Washington, D. C.

